How is the ash from gasification handled?
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As the gasification process becomes more mature and environmental standards increase, how are the slag and ash produced by various gasification units handled? Please share.
What is the particle size of coal ash slag? What is the moisture content?
The ash generated by gasification furnaces is difficult to handle. It is said that it can be used in the construction industry, but its properties do not meet the **standard requirements. Currently, some factories use this ash with a high carbon content in CFB boilers for combustion; it remains to be seen whether this ash can be utilized as backfill material in coal mines, as that would likely be a better solution.
The composition of the ash produced varies depending on the type of furnace; some of it can be used as building materials or cement, while other types that cannot be utilized are simply treated as waste. This includes the coal sludge resulting from sedimentation in our systems. Some manufacturers use this sludge in CFB boilers. Let’s share our experiences and discuss how we can handle it more effectively For example, in some dry desulfurization processes for syngas, the ash is extremely fine and has a high carbon content; how can its energy be recovered more effectively?
Aerated concrete, cement raw materials, fly ash and lime can be used directly for roadbeds, etc.
QQ1594147107, what do you think are the prospects for technologies aimed at the resourceful processing of ash and slag? May I ask, how?